XFX 4830 vmod?

[Ket]

Still waiting on my replacement 4830. Damn bank holiday, cos of it I won't get my replacement card much before Friday

[Scrizz]

tht sux
well at least you're running crossfire soon

[Ket]

Yeah. Can't wait to show that ugly mofo people call 3DMark Vantage whos in charge. Vantage is by far the most butt-ugly benchmark I've ever seen. 3DMark06 looks way better.

[Ket]

I will have 2 XFX 4830s arriving soon. So here is my question, where we see the missing capacitors on the XFX cards, do we know what possible benefit there might be by soldering the missing caps on? My soldering skills are my ace, so I'm willing to use one of the cards as a test subject

[Scrizz]

so you get the cards yet?

[Ket]

Indeed I have. Maybe I missed it but I don't think anyone said what pots would be best to use for a vmem mod. Thats what I'm mainly aiming for, these cards are screaming for more bandwidth.

[JamesBong420]

[B]For Vmem, a 100k should be fine. Just connect it between pin#3 and pin#6 of the up6101. Make sure it's et to max resistance before soldering it in.
You could also use a 50k poti if you don't mind a higher default voltage with the potentiometer at its max., but want more precision in higher voltage ranges. If you want both, precision and nearly same default voltage as an unmodded card, you can use 2 50k potis connected in series.

celemine1Gig said it right.. still double check your resistance(s)...

[Ket]

Cool, I'll get on that. I don't mind a higher default voltage with a 50k, I just want to give the poor memory some decent voltage. Their rated for 2v and XFX volt them @ 1.74v

[celemine1Gig]

Cool, I'll get on that. I don't mind a higher default voltage with a 50k, I just want to give the poor memory some decent voltage. Their rated for 2v and XFX volt them @ 1.74v

...
EDIT1: Voltage reading of one set of pins is 2.01v idle, so guessing that is memory. the possible vgpu point measures 1.20v, so guess that is right as well. This is at idle, so gona load it now and see what the droop is like.

EDIT2: Memory stays at 2.01v under load. vgpu goes up to 1.22v. Used furmark and 3dmark 03 for testing during measuring.

- paul

I guess you should rethink the highlighted part before attempting another mod. It's highly unlikely that XFX used a special circuit just for your card. --> The real memory voltage on your card never was 1.74V. If it would've been I think that the RAM wouldn't even have worked correctly. Remember that would be a 15% decrease. As I already said, the likelyness of one card having such a huge difference in voltage in comparison to the rest, is very small. They are produced in mass manufacturing and each card is tested individually.

Be sure to recheck those values, using the right measuring spots. I bet you won't get anything much different from 2V.

[Ket]

Its very likely the memory would work absolutely fine with 1.74v, XFX don't need the memory to do 2GHz, just 1.8GHz, in which case 1.74v would be enough. Samsungs own spec sheet shows the part below their HJ1As only needing around 1.8v.

[Blazer_]

Hello dudes.
Do any one can i bios mod this thing ? I bought XFX HD4830 today (XFX cooler, Zalman VF 1000 is waiting) and i want more vcore to GPU with bios mod if it is possible.
Or, can i flash Asus bios and use Smart Doctor to increase vcore ? :p

This is my "first" ATI craph, last one was 9600XT, so i dont know much these things..
I think i dont want harmod this thing yet..testing first possible bios mod.

Thanks a lot

[Mescalamba]

Hello dudes.
Do any one can i bios mod this thing ? I bought XFX HD4830 today (XFX cooler, Zalman VF 1000 is waiting) and i want more vcore to GPU with bios mod if it is possible.
Or, can i flash Asus bios and use Smart Doctor to increase vcore ? :p

This is my "first" ATI craph, last one was 9600XT, so i dont know much these things..
I think i dont want harmod this thing yet..testing first possible bios mod.

Thanks a lot

http://www.techpowerup.com/rbe/

Extract your BIOS, mod it, flash it back and be prepared with backup GPU, in case something went wrong. I'm not sure that you can push voltages much without vmod. Maybe pencil mod?

[Paxi]

You can´t really mess something up. Yust open your Bios with RBE, set max value from voltage table. Don´t touch 00 und 01, there are just for startup/2d.
After that save bios and flash with Atiflash.

[Blazer_]

Thanks a lot for quick response !
I will test bios mod tomorror.

Can someone link pencil mod ?
I search yesterday, but i didn't get it..where i should and how put pencil..(sorry about my english..)
But i think that is very easy job, when i just get it.

How much with pencil mod is vcore ?

My XFX goes 720/1060Mhz with stock cooler, tested by GPUTool.
Nice program btw :p

Core will go maybe ~10-15Mhz more with Zalman, luckily.

Damn these rams sucks, 8800GT did awsome job, 2250Mhz 24/7

e. , it is 1.258v already..can't increase, damnit.
But can i put "clock info 00" 1.129v and core 300Mhz, does it drop idle watts..i?
It would be nice too, if i can drop idle watts
So..it seems to bee like i have to just test pencil mod.

[ownage]

No-one tested these babies on water yet?

[BeepBeep2]

But can i put "clock info 00" 1.129v and core 300Mhz, does it drop idle watts..i?
It would be nice too, if i can drop idle watts
So..it seems to bee like i have to just test pencil mod.

If thats the 2D clock then yes, but if you set the core too low it will most likely go black of BSOD. (When the GPU is in protection mode it goes to 300) stock setting is 500 Mhz, it can't hurt to try maybe 400.

[JamesBong420]

No-one tested these babies on water yet?

actually i have one on water right now... i have her vmodded but never got around to testing for max(so far 800/1150).. looks like i have some fun to do...

[Blazer_]

If thats the 2D clock then yes, but if you set the core too low it will most likely go black of BSOD. (When the GPU is in protection mode it goes to 300) stock setting is 500 Mhz, it can't hurt to try maybe 400.

Hmh..400Mhz for core, what about volts, what do you think how much i can drop them ? It sucks if i get only black
But, i have 2x pci 16x and couple graphs so i can flast it stock.

Can't find pencil mod instructions...
I herd that vcore is with pencil 1.45v ? I think thats too much..~1.35v would be nicer..24/7 i mean..is that possible ?
And i am going to tweak some how 2D clocks down and volts

[Mescalamba]

Hmh..400Mhz for core, what about volts, what do you think how much i can drop them ? It sucks if i get only black
But, i have 2x pci 16x and couple graphs so i can flast it stock.

Can't find pencil mod instructions...
I herd that vcore is with pencil 1.45v ? I think thats too much..~1.35v would be nicer..24/7 i mean..is that possible ?
And i am going to tweak some how 2D clocks down and volts

Well I haven't find any on XS, only ones for MSI via Google.. but not sure if MSI use same PCB.. probably not.

vCore increase depends how much of pencil you use.. if it can be done, there can by only slight increase in voltage.. tough it would probably need some help from ppl that understand how to do that with this graphic card.. which is certainly not me, cause I'm not even able to understand this hardmod (I need some picture where it is clearly visible what I should solder where, than its easy.

Tough.. it looks like founders of this thread doesn't look here anymore.. if yes.. can you make some guide for dummies? (and for pencil mod, if its possible ) Thanks much..

[ownage]

Well I haven't find any on XS, only ones for MSI via Google.. but not sure if MSI use same PCB.. probably not.

vCore increase depenlyds how much of pencil you use.. if it can be done, there can by only slight increase in voltage.. tough it would probably need some help from ppl that understand how to do that with this graphic card.. which is certainly not me, cause I'm not even able to understand this hardmod (I need some picture where it is clearly visible what I should solder where, than its easy.

Tough.. it looks like founders of this thread doesn't look here anymore.. if yes.. can you make some guide for dummies? (and for pencil mod, if its possible ) Thanks much..

I know that the MSI 4830 OC (runs on stock speeds), has a non-reference pcb, and an extra phase. Beefy VRM for sure, and probably a different vmod. I ordered one A friend of mine has his MSI on 775mhz, max benchable 825mhz. Slightly vmodded and still stock cooling.

I keep hearing stories the XFX is still the best clocker?

[Paxi]

So has anyone got a working vmod for this card now? Expect Bios Flash and Pencil. I´m not that experienced in modding cards but i only saw some measuring points on the card so far. Would be very nice if somehere could up a full vmod with pictures and some instructions.
http://www.xtremesystems.org/forums/...7&postcount=48 celemine1Gig already posted some theory but i can´t really do something with this without pictures.

[Mescalamba]

So has anyone got a working vmod for this card now? Expect Bios Flash and Pencil. I´m not that experienced in modding cards but i only saw some measuring points on the card so far. Would be very nice if somehere could up a full vmod with pictures and some instructions.
http://www.xtremesystems.org/forums/...7&postcount=48 celemine1Gig already posted some theory but i can´t really do something with this without pictures.

Same for me..

[Mescalamba]

I know that the MSI 4830 OC (runs on stock speeds), has a non-reference pcb, and an extra phase. Beefy VRM for sure, and probably a different vmod. I ordered one A friend of mine has his MSI on 775mhz, max benchable 825mhz. Slightly vmodded and still stock cooling.

I keep hearing stories the XFX is still the best clocker?

Yea, thats the one I saw. Well, XFX can be good clocker, but without working vMod, its worth nothing.. tempted to buy MSi as well and maybe put it under water, with some custom block..

Lol, I have a idea.. why we don't ask XFX direcly, how to voltmod their graphic card?

[Blazer_]

Lol, I have a idea.. why we don't ask XFX direcly, how to voltmod their graphic card?

Sounds good for me, but should i email them or what ?
I just installed Zalman to XFX, let's see how this thing clocks now.
I have no heatsink on memory, i forgot.

[Blazer_]

Is 2D and 3D clocks OK now ?
Just flash and it works..

(I tested those volts and clocks that they are OK)